Evidence on the Effects of Inflation on Price Dispersion under Indexation
Juliane Scharff, S. Schreiber
Empirical Economics,
No. 1,
2012
Abstract
Distortionary effects of inflation on relative prices are the main argument for inflation stabilization in macro models with sticky prices. Under indexation of non-optimized prices, those models imply a nonlinear and dynamic impact of inflation on the cross-sectional price dispersion (relative price or inflation variability, RPV). Using US sectoral price data, we estimate such a relationship between inflation and RPV, also taking into account the endogeneity of inflation by using two- and three-stage least-squares and GMM techniques, which turns out to be relevant. We find an effect of (expected) inflation on RPV, and our results indicate that average (“trend”) inflation is important for the RPV-inflation relationship. Lagged inflation matters for indexation in the CPI data, but is not important empirically in the PPI data.
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Monetary Policy in a World Where Money (Also) Matters
Makram El-Shagi, Sebastian Giesen
IWH Discussion Papers,
No. 6,
2012
Abstract
While the long-run relation between money and inflation as predicted by the quantity theory is well established, empirical studies of the short-run adjustment process have been inconclusive at best. The literature regarding the validity of the quantity theory within a given economy is mixed. Previous research has found support for quantity theory within a given economy by combining the P-Star, the structural VAR and the monetary aggregation literature. However, these models lack precise modelling of the short-run dynamics by ignoring interest rates as the main policy instrument. Contrarily, most New Keynesian approaches, while excellently modeling the short-run dynamics transmitted through interest rates, ignore the role of money and thus the potential mid-and long-run effects of monetary policy. We propose a parsimonious and fairly unrestrictive econometric model that allows a detailed look into the dynamics of a monetary policy shock by accounting for changes in economic equilibria, such as potential output and money demand, in a framework that allows for both monetarist and New Keynesian transmission mechanisms, while also considering the Barnett critique. While we confirm most New Keynesian findings concerning the short-run dynamics, we also find strong evidence for a substantial role of the quantity of money for price movements.
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Does Central Bank Staff Beat Private Forecasters?
Makram El-Shagi, Sebastian Giesen, A. Jung
IWH Discussion Papers,
No. 5,
2012
Abstract
In the tradition of Romer and Romer (2000), this paper compares staff forecasts of the Federal Reserve (Fed) and the European Central Bank (ECB) for inflation and output with corresponding private forecasts. Standard tests show that the Fed and less so the ECB have a considerable information advantage about inflation and output. Using novel tests for conditional predictive ability and forecast stability for the US, we identify the driving forces of the narrowing of the information advantage of Greenbook forecasts coinciding with the Great Moderation.
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The Halle Economic Projection Model
Sebastian Giesen, Oliver Holtemöller, Juliane Scharff, Rolf Scheufele
Economic Modelling,
No. 4,
2012
Abstract
In this paper we develop an open economy model explaining the joint determination of output, inflation, interest rates, unemployment and the exchange rate in a multi-country framework. Our model -- the Halle Economic Projection Model (HEPM) -- is closely related to studies published by Carabenciov et al. Our main contribution is that we model the Euro area countries separately. In doing so, we consider Germany, France, and Italy which represent together about 70 percent of Euro area GDP. The model combines core equations of the New-Keynesian standard DSGE model with empirically useful ad-hoc equations. We estimate this model using Bayesian techniques and evaluate the forecasting properties. Additionally, we provide an impulse response analysis and a historical shock decomposition.
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Polens Wirtschaft wenig beeindruckt von globaler Konjunkturabschwächung
Martina Kämpfe
Wirtschaft im Wandel,
No. 12,
2011
Abstract
Die Erholung der Konjunktur in Polen hatte sich zu Beginn des Jahres 2011 fortgesetzt. Mit einer steigenden Auslastung der Produktionskapazitäten hatten auch die Unternehmensinvestitionen sich wieder stärker belebt. Sie trugen positiv zur Binnennachfrage bei, der wichtigsten Triebkraft der wirtschaftlichen Expansion. Der private Konsum blieb trotz beschleunigter Inflation und einer Mehrwertsteuererhöhung weiter nach oben gerichtet. Die gute Konjunktur hatte auch eine Verbesserung der Arbeitsmarktlage zur Folge: Die Beschäftigung in den Unternehmen stieg wieder kräftiger an, die Arbeitslosenquote verringerte sich aber noch kaum. Im Verlauf des Jahres 2011 hat sich das konjunkturelle Klima allerdings etwas abgekühlt. Die Verschlechterung des außenwirtschaftlichen Umfeldes und damit verbundene Risiken für Nachfrage und Produktion haben die Aussichten für den Prognosezeitraum eingetrübt: Von der Binnennachfrage werden 2012 schwächere Impulse für die wirtschaftliche Expansion kommen. Investitionen in den Unternehmen werden zeitlich nach hinten verschoben, der Beschäftigungsaufbau wird abgebremst werden. Auch der private Konsum wird im kommenden Jahr wohl etwas gedämpfter zunehmen. Leicht entspannt hat sich die Haushaltslage. Das hohe Budgetdefizit von nahezu 8% des Bruttoinlandsproduktes
im Jahr 2010 hat sich im Folgejahr auf etwa 5% verringert und fiel damit geringer aus als ursprünglich veranschlagt. Dafür sind allerdings größtenteils Sondereffekte verantwortlich, während der strukturell verursachte Anteil des Defizits weiter erheblich ist. Angesichts bisheriger Versäumnisse ist die Politik gefordert, die Reform der öffentlichen Finanzen konsequenter als bislang anzugehen und einen Ausweg aus dem weiteren Anstieg der Schuldenquote zu weisen.
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21.12.2011 • 55/2011
Polens Wirtschaft wenig beeindruckt von globaler Konjunkturabschwächung
Die Erholung der Konjunktur in Polen hatte sich zu Beginn des Jahres 2011 fortgesetzt. Mit einer steigenden Auslastung der Produktionskapazitäten hatten auch die Unternehmensinvestitionen sich wieder stärker belebt. Sie trugen positiv zur Binnennachfrage bei, der wichtigsten Triebkraft der wirtschaftlichen Expansion. Der private Konsum blieb trotz beschleunigter Inflation und einer Mehrwertsteuererhöhung weiter nach oben gerichtet. Die gute Konjunktur hatte auch eine Verbesserung der Arbeitsmarktlage zur Folge: Die Beschäftigung in den Unternehmen stieg wieder kräftiger an, die Arbeitslosenquote verringerte sich aber noch kaum.
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Did the Crisis Affect Potential Output?
Makram El-Shagi
Applied Economics Letters,
No. 8,
2011
Abstract
Conventional Phillips-curve models that are used to estimate the output gap detect a substantial decline in potential output due to the present crisis. Using a multivariate state space model, we show that this result does not hold if the long run role of excess liquidity (that we estimate endogeneously) for inflation is taken into account.
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Are Qualitative Inflation Expectations Useful to Predict Inflation?
Rolf Scheufele
Journal of Business Cycle Measurement and Analysis,
No. 1,
2011
Abstract
This paper examines the properties of qualitative inflation expectations collected from economic experts for Germany. It describes their characteristics relating to rationality and Granger causality. An out-of-sample simulation study investigates whether this indicator is suitable for inflation forecasting. Results from other standard forecasting models are considered and compared with models employing survey measures. We find that a model using survey expectations outperforms most of the competing models. Moreover, we find some evidence that the survey indicator already contains information from other model types (e. g. Phillips curve models). However, the forecast quality may be further improved by completely taking into account information from some financial indicators.
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Inflation Expectations: Does the Market Beat Professional Forecasts?
Makram El-Shagi
North American Journal of Economics and Finance,
No. 3,
2011
Abstract
The present paper compares expected inflation to (econometric) inflation forecasts based on a number of forecasting techniques from the literature using a panel of ten industrialized countries during the period of 1988 to 2007. To capture expected inflation, we develop a recursive filtering algorithm which extracts unexpected inflation from real interest rate data, even in the presence of diverse risks and a potential Mundell-Tobin-effect.
The extracted unexpected inflation is compared to the forecasting errors of ten
econometric forecasts. Beside the standard AR(p) and ARMA(1,1) models, which
are known to perform best on average, we also employ several Phillips curve based approaches, VAR, dynamic factor models and two simple model avering approaches.
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